| 摘要 |
<p>PROBLEM TO BE SOLVED: To achieve authenticating accuracy in voice authentication and the reduction of a security risk.SOLUTION: An information processor includes: preliminary registration means for accepting the utterance of a first character string by a user, and for allowing user information storage means to store the user, the first character string and registration features as the information of an uttered voice in association; target determination means for selecting a portion of the first character string stored in the user information storage means to determine an utterance target about the user as the target of authentication; authentication time acceptance means for presenting the determined utterance target to accept the utterance; and authentication means for authenticating the user on the basis of the authentication time utterance as the utterance accepted by the authentication time acceptance means and the registration features stored in the user information storage means.</p> |
